Numerically controlled grinding machine BHC63 CNC

BHC 63 CNC is a fully numerically controlled grinding machine with three control axes. Control axes X (infeed of wheel head), Z (longitudinal feed of table), program-controlled of work head spindle revolution C. The grinder has been constructed primarily for numerically controlled grinding of a number of external cylindrical surfaces of different diameters and their contiguous front surfaces and radii, including automatic wheel dressing and wear compensation by means of the CNC system. Optionally it can be used with special accessory for internal grinding.
In centres are possible grind cylindrical surfaces or slim taper surfaces within the range of table swivel.

BHC grinding machine can be of use particularly in the piece and small-lot production for grinding workpieces weighing up to 4000 (5000) kg. Automatic working cycle, adjustment possibilities and control gauge device predestine this grinder for economical grinding even in the serial production. On one hand, the grinder satisfies growing demands for higher performance and on the other hand it keeps its universality and simplicity regarding operation of the machine. It grinds in precision accuracy IT 4. It is equipped with modern design elements such as grinding wheel head in-feed by a ball screw with a rolling guidance of a grinding wheel head. Longitudinal machine feed is also controlled by a ball screw. The machine is fitted with control system SINUMERIK 840 D sl and servomotors SINAMCS S 120 on axes X and Z. Interpolation of mutually perpendicular axes Z (longitudinal table feed) and X (grinding wheel head cross feed-in) enables the use of a wide range of grinding methods and contour dressing of wheels for both internal and external grinding. Grinding of face surfaces can be performed by the side of the grinding wheel or its circumferential surface with inclined drive headstock. Control elements of the machine are effectively placed at the operator´s seat. They are easily accessible and so enable good controllability of the machine. Special equipment essentially broadens working possibilities of the machine and favourably influences grinding quality.

Machine design

• highly stable bed with reinforcement,
• excellent friction characteristics of Teflon,
• according to the CE standard,
• CNC control systems (SIEMENS, B&R),
• digital AC servomotors,
• controlled axis X (grinding wheelhead in-feed), Z (table feed),
• hand-wheel for axis X and Z setting,
• equipped with fully covering and automatic controlled doors,
• telescopic covers,
• cooling with belt and magnetic filter,
• robust and rigid duo table.

The machines are additionally equipped and designed according to specific needs of the customer and taking into account the materials to be ground or the selected machining technology.